https://test-results.appspot.com/dashboards/flakiness_dashboard.html#testType=webkit_tests&tests=worker-js-frames.html&showLargeExpectations=true

https://storage.googleapis.com/chromium-layout-test-archives/Browser_Side_Navigation_Linux/27704/layout-test-results/virtual/threaded/inspector/tracing/worker-js-frames-diff.txt

--- /mnt/data/b/rr/tmpfVmKWQ/w/layout-test-results/virtual/threaded/inspector/tracing/worker-js-frames-expected.txt
+++ /mnt/data/b/rr/tmpfVmKWQ/w/layout-test-results/virtual/threaded/inspector/tracing/worker-js-frames-actual.txt
@@ -1,6 +1,8 @@
 Tests js cpu profile in timeline.
 
 Main Thread
+FAIL: missing events:
+startSecondWorker
 DedicatedWorker Thread
 DedicatedWorker Thread